harmonize

/ˈhɑːrmənaɪz/
verb
  1. To combine or arrange things in a pleasing, orderly, or consistent way.
    • The new policy aims to harmonize rules across all company branches.
    • We need to harmonize our schedules so everyone can attend the meeting.
    • The interior designer helped harmonize the colors in the living room.
  2. To sing or play music in harmony; to add notes that complement a melody.
    • The choir learned to harmonize beautifully on the final chorus.
    • She can harmonize with almost any melody she hears.
    • The guitarist and pianist harmonized perfectly during the duet.
  3. To be in agreement or accord; to go well together.
    • His calm voice harmonizes with the peaceful setting of the garden.
    • Their opinions on the project harmonize more than they expected.
    • The flavors in this dish harmonize wonderfully.